Certifications of sunscreen zebra fabric 1.Passed color fastness level test - grade 8 International Authorized ISO105B02 and US authorized ATCC16-2003 are the mainly test standards for color fastness. At the same time, ATCC16-2003’s top grade is 5(most of sunscreen fabric suppliers from China follow this standard, usually the testing results are grade 4-4.5); ISO105B02 gets higher testing standards, whose top grade is 8. MagicalTex sunscreen fabric products past the top grade 8, that’s why MagicalTex can stay the same color(no fading problems, no changing color) for many years, even under the effect of strong ultraviolet radiation.